Question

2v^2 − 7v + 4 = 0
Write your answers as integers, proper or improper fractions in simplest form, or decimals rounded to the nearest hundredth.

Answer 1

@snowflake0531

Answer 2

mmmm do you want to use the graphing method or use the quadratic equation?

Answer 3

quadratic equation

Answer 4

\[\frac{-b \pm \sqrt{b^2-4ac}}{2a} \\ \\ax^2+bx+c \\2x^2-7x+4\]
\[ a=2 \\b=-7\\c=4\] Can you plug a, b, and c into the quadratic formula?

Answer 5

a= 2
b= -7
c= 4

Answer 6

yea... and plug that into \[\frac{-b \pm \sqrt{b^2-4ac}}{2a}\]

Answer 7

I'm confused

Answer 8

\[\frac{ -(-7) \pm \sqrt{-7)^2-4(2)(4)} }{ 2(2) }\]

Answer 9

14.43087m / p

Answer 10

@snowflake0531

Answer 11

uh wat can you just simplify that expression?

Answer 12

I put the equation in a calculator and that's what it gave me

Answer 13

Don't use a calculator.... use your brain o-o just simplify the numbers, multiply

Answer 14

7^2 = 49

Answer 15

\[\frac{ -(-7) \pm \sqrt{(-7)^2-4(2)(4)} }{ 2(2) } \\ \frac{ 7 \pm \sqrt{49-32} }{ 4 }\\\frac{ 7 \pm \sqrt{17} }{ 4 }\]

Answer 16

So then you have \[\frac{7+\sqrt17}{4}\\\frac{7-\sqrt17}{4}\]

Answer 17

8.03

Answer 18

sure find the decimal form of both

Answer 19

0.0803

Answer 20

i have no clue where you got your answers

Answer 21

So then you can round to 0.72 and 2.78